TW246714B - - Google Patents

Info

Publication number
TW246714B
TW246714B TW081105215A TW81105215A TW246714B TW 246714 B TW246714 B TW 246714B TW 081105215 A TW081105215 A TW 081105215A TW 81105215 A TW81105215 A TW 81105215A TW 246714 B TW246714 B TW 246714B
Authority
TW
Taiwan
Prior art keywords
pct
fluid
digital device
sec
lsi
Prior art date
Application number
TW081105215A
Other languages
English (en)
Inventor
James Hews-Taylor Kenneth
Original Assignee
Australia Nat Science Industry Res Ct
Agl Consulting Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Australia Nat Science Industry Res Ct, Agl Consulting Co filed Critical Australia Nat Science Industry Res Ct
Application granted granted Critical
Publication of TW246714B publication Critical patent/TW246714B/zh

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/662—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Thermistors And Varistors (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
TW081105215A 1991-06-25 1992-07-01 TW246714B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPK689391 1991-06-25

Publications (1)

Publication Number Publication Date
TW246714B true TW246714B (zh) 1995-05-01

Family

ID=3775502

Family Applications (1)

Application Number Title Priority Date Filing Date
TW081105215A TW246714B (zh) 1991-06-25 1992-07-01

Country Status (20)

Country Link
US (1) US5553505A (zh)
EP (1) EP0591349B1 (zh)
JP (1) JPH07500662A (zh)
CN (1) CN1046026C (zh)
AT (1) ATE163756T1 (zh)
AU (1) AU666122B2 (zh)
CA (1) CA2112094A1 (zh)
DE (1) DE69224643T2 (zh)
DK (1) DK0591349T3 (zh)
ES (1) ES2112907T3 (zh)
FI (1) FI935822A (zh)
GR (1) GR3026606T3 (zh)
HU (1) HUT68387A (zh)
IE (1) IE80654B1 (zh)
IN (1) IN178275B (zh)
NZ (1) NZ243293A (zh)
PL (1) PL169741B1 (zh)
SG (1) SG45209A1 (zh)
TW (1) TW246714B (zh)
WO (1) WO1993000569A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI500908B (zh) * 2013-06-19 2015-09-21 Ind Tech Res Inst 超音波流量計及超音波流量測量方法

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US6757623B2 (en) * 2001-04-20 2004-06-29 Ads Corporation Flow transport analysis method and system
JP4886120B2 (ja) * 2001-05-16 2012-02-29 東京計器株式会社 超音波流速計
DE10254054A1 (de) * 2002-11-19 2004-06-03 Endress + Hauser Flowtec Ag, Reinach Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder des Massendurchflusses eines Mediums
TW557973U (en) * 2003-01-17 2003-10-11 Yan-Tang Lin Connecting joint structure for water pipe
JP4394918B2 (ja) * 2003-10-03 2010-01-06 淳一 櫛引 高精度超音波材料特性解析装置及びその温度制御方法
US7152490B1 (en) 2005-08-15 2006-12-26 Daniel Measurement And Control, Inc. Methods for determining transducer delay time and transducer separation in ultrasonic flow meters
TR200604281U (tr) * 2006-08-10 2006-11-21 Elektromed Elektroni̇k Sanayi̇ Ve Sağlik Hi̇zmetleri̇li̇mi̇ted Şi̇rketi̇ Ultrasonik su sayacı
US7911306B2 (en) * 2008-01-08 2011-03-22 Daniel Measurement And Control, Inc. Transformer board
DE102008019992B4 (de) * 2008-04-21 2010-07-01 Mib Gmbh Messtechnik Und Industrieberatung Ultraschall-Messanordnung
DE102008019989B4 (de) * 2008-04-21 2010-07-01 Mib Gmbh Messtechnik Und Industrieberatung Ultraschall-Messanordnung
CN101901596B (zh) * 2010-08-18 2012-09-19 王伟东 带计数功能的触点式喇叭系统
US20140069207A1 (en) 2011-03-18 2014-03-13 Soneter, LLC Methods and apparatus for fluid flow measurement
CN102297712B (zh) * 2011-07-12 2012-09-05 北京理工大学 一种超声回波传播时间测量方法
RU2491518C1 (ru) * 2012-02-27 2013-08-27 Общество с ограниченной ответственностью Инженерный центр "Энергопрогресс" Измеритель уровня и границы раздела двух продуктов
US8833384B2 (en) 2012-08-06 2014-09-16 Schneider Electric Buildings, Llc Advanced valve actuation system with integral freeze protection
US9534795B2 (en) 2012-10-05 2017-01-03 Schneider Electric Buildings, Llc Advanced valve actuator with remote location flow reset
US10295080B2 (en) 2012-12-11 2019-05-21 Schneider Electric Buildings, Llc Fast attachment open end direct mount damper and valve actuator
DK2971901T3 (en) 2013-03-15 2019-01-07 Schneider Electric Buildings Advanced valve actuator with integrated energy measurement
WO2014143922A1 (en) 2013-03-15 2014-09-18 Schneider Electric Buildings, Llc Advanced valve actuator with true flow feedback
DK178244B1 (en) 2013-06-21 2015-09-28 Agena As A system or a method for measuring flow in a flow duct
US10176709B2 (en) * 2015-04-30 2019-01-08 Honeywell International Inc. Optical gas meter disconnect
CA2895361C (en) * 2015-06-19 2023-08-01 Accutron Instruments Inc. Method and system for ultrasonic airflow measurements
EP3717873B1 (en) * 2017-12-03 2024-05-22 Eugene Fourie A flowmeter
DE102018006628A1 (de) * 2018-08-22 2020-02-27 Diehl Metering Gmbh Messeinrichtung
CN109638858B (zh) * 2018-11-30 2021-10-15 中国能源建设集团广东省电力设计研究院有限公司 调频调峰方法、装置及系统
CN110207771B (zh) * 2019-06-14 2020-08-04 浙江启尔机电技术有限公司 一种单通路连续多超声信号同步计时电路及其计时方法
EP3990871A1 (en) * 2019-06-25 2022-05-04 Kamstrup A/S Ultrasonic flow meter and a method of determining a flow rate
CN114787590A (zh) * 2019-12-23 2022-07-22 贝利莫控股公司 用于测量经过通道的气体的流量的系统和方法
CN113504389A (zh) * 2021-07-27 2021-10-15 美卓伦仪表（常州）有限公司 一种测量超声波传播时间的电路及方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI500908B (zh) * 2013-06-19 2015-09-21 Ind Tech Res Inst 超音波流量計及超音波流量測量方法

Also Published As

Publication number Publication date
CA2112094A1 (en) 1993-01-07
IE80654B1 (en) 1998-11-04
EP0591349A1 (en) 1994-04-13
IE922038A1 (en) 1992-12-30
NZ243293A (en) 1995-03-28
HUT68387A (en) 1995-06-28
AU666122B2 (en) 1996-02-01
CN1046026C (zh) 1999-10-27
DE69224643T2 (de) 1998-10-15
FI935822A (fi) 1994-02-21
EP0591349A4 (zh) 1994-08-31
ATE163756T1 (de) 1998-03-15
JPH07500662A (ja) 1995-01-19
IN178275B (zh) 1997-03-22
DE69224643D1 (de) 1998-04-09
CN1070473A (zh) 1993-03-31
DK0591349T3 (da) 1998-09-28
ES2112907T3 (es) 1998-04-16
SG45209A1 (en) 1998-01-16
EP0591349B1 (en) 1998-03-04
HU9303695D0 (en) 1994-04-28
US5553505A (en) 1996-09-10
PL169741B1 (pl) 1996-08-30
FI935822A0 (fi) 1993-12-23
GR3026606T3 (en) 1998-07-31
WO1993000569A1 (en) 1993-01-07
AU2172792A (en) 1993-01-25

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